Hosted by The Math Forum## Problem of the Week 1130## A True Diagonal Problem
How many ways are there to place the numbers 1, 2, 3, 4, 5 in the 16 squares of a
Here, two placements are considered different if they are different in any way. And
An equivalent statement is to assume one has several chess queens, in five different colors. A legal placement would be a placement of 16 queens on the
Comment: An old problem (#308) in Dudeney's famous Source: Very old problem of Joe Konhauser when he worked at Ford Motor Co. Joe was the founder (1968) of our PoW program. © Copyright 2010 Stan Wagon. Reproduced with permission. |

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13 September 2010